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GDeto
Associate II
August 19, 2021
Question

Changed from STM32L476xx to STM32L4A6xG and the Serial communication clock has 7% of difference at 115.2kbaud rate.

  • August 19, 2021
  • 2 replies
  • 1037 views

I have firmware file for the STM32L476xx and in the application they decided to use the STM32L4A6xG instead for future upgrades.

I tried to load the original firmware and it seems that the application is not running properly anymore. All initializations are OK but the UART seems to have an issue with the clock...

I would expect as in the website that they are compatible versions.

Do I need to create a new project?

Do I need to make any further modifications?

Thanks

This topic has been closed for replies.

2 replies

waclawek.jan
Super User
August 19, 2021

What's the primary clock source?

JW

Tesla DeLorean
Guru
August 19, 2021

Watch for HSI, and perhaps MSI, clock sources and CALIBRATION values.

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